RE: Matched cells
Check ebay, theirs a company, Teamscream, that sells them really cheap. I got a 1.162 pack for $26.
In adition to that youll need [link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXKX33&P=7]one of these[/link] I would go ahead and buy a few of the building kits, that way youll already have them and youll save on shipping.
By the way, the sellers name is jrc1101, I checked and right now all he has for sale (on ebay) is a 1.165 pack which I think is $35.